Pictures can help break any language barriers. Take for example, the toilet sign. Toilets have different interpretations in different countries and it would be very frustrating if one does not recognize the word "toilet" in another language. However, with the toilet sign implemented, all problems would be solved since the sign for males and females are similar all over the world. Apart from this, showing a taxi driver a picture of the train station would be more effective than trying to get the driver to understand you by making weird train noises or learning their language and probably end up embarrassing yourself. Therefore, a picture is more effective and powerful in bringing the meaning across than mere words.